What is the meaning of pms?

noun

• An examination and dissection of a dead body to determine cause of death or the changes produced by disease.
  • synonyms: autopsy, necropsy, postmortem, post-mortem, PM, postmortem examination, post-mortem examination
• A soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium.
  • synonyms: promethium, Pm, atomic number 61
• The person who holds the position of head of the government in the United Kingdom.
  • synonyms: Prime Minister, PM, premier
• Modulation of the phase of the carrier wave.
  • synonyms: phase modulation, PM
• A syndrome that occurs in many women from 2 to 14 days before the onset of menstruation.
  • synonyms: premenstrual syndrome